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rubber, hydrolysis and ethanol fermentation
Submitted by Edward on 19/Sep/2007
Message:
Let me introduce myself first.My name is Edward Monickavasagam Harris and I am a retired chemical engineerr who worked 32 years for the Rubber Research Institute of Malaysia(1962-93) developing rubber grades, new uses for rubber and chemical utilisation of rubberwood. One original work was application of natural rubber to fermentation of sugars derived from sugarcane and hydrolysis of wood by sulphuric acid. A continuous fermentation process was developed without the need for culturing yeast cells.Yields of ethanol obtained were highand the process was operated for 6m without stoppages. Simplicity and low cost makes it ideal for application to any system of ethanol fermentation. . A second system which I developed was wood pyrolyser yielding char,acetic acid, wood spirit,wood tar and combustible gas.Part of this process is exothermic. We utilised the gas fraction for distillation of wood spirit and also ethanol from sugary fermentation liquor.for direct use in E85 cars.. A vast amount of wastewood is available from the replanting programme running into millions of tonnes globally.which could be profitably channeled for pyrolysis and fermentation. Currently the wood is buried with slow conversion to methane by bacteria and termites. It would be the best option for reducing CO2 emissions and global warming since the technology is already available now without much further development cf electric or biodiesel cars.As Henry Ford intended. I believe your organisation will be able to assist in developing or promoting this novel concept of producing auto fuel at low cost. Looking forward to your advice and comments. I have drawings which I have attached.. For what it is worth for your information I developed the current mode of constant viscosity rubber from field latex 35 years ago while I was factory technologist at the RRIM Exp.Station in Sg.Buloh. This grade has since inception commanded premium of USD 0.3 over the light coloured natural rubber grade, SMR 5L.,the light coloured grade also developed by me concurrently with SMR5 CV, as documented in 1974 RRIM Conference paper.. There are also other inventions: 1) Very low protein examination gloves, with EP level <50 mg per kg. with minimal modification to production line, ie at similar cost to current gloves with EP>>300mg/kg. 2) Colloidal silica from padi hulls via pyrolysis for use as talc or reinforcing filler. Collaloration to begin wood pyrolysis and molasses/sugar fermentation would be timely at present with crude oil hitting USD 75 per barrel. With best wishes, Edward
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